curl/CMakeLists.txt

# cURL/libcurl CMake script
# by Tetetest and Sukender (Benoit Neil)

# TODO:
# The output .so file lacks the soname number which we currently have within the lib/Makefile.am file
# Add full (4 or 5 libs) SSL support
# Add INSTALL target (EXTRA_DIST variables in Makefile.am may be moved to Makefile.inc so that CMake/CPack is aware of what's to include).
# Add CTests(?)
# Check on all possible platforms
# Test with as many configurations possible (With or without any option)
# Create scripts that help keeping the CMake build system up to date (to reduce maintenance). According to Tetetest:
#  - lists of headers that 'configure' checks for;
#  - curl-specific tests (the ones that are in m4/curl-*.m4 files);
#  - (most obvious thing:) curl version numbers.
# Add documentation subproject
#
# To check:
# (From Daniel Stenberg) The cmake build selected to run gcc with -fPIC on my box while the plain configure script did not.
# (From Daniel Stenberg) The gcc command line use neither -g nor any -O options. As a developer, I also treasure our configure scripts's --enable-debug option that sets a long range of "picky" compiler options.

CMAKE_MINIMUM_REQUIRED(VERSION 2.6.2 FATAL_ERROR)
SET(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMake;${CMAKE_MODULE_PATH}")
INCLUDE(Utilities)

project( CURL C )
SET(CURL_MAJOR_VERSION 7)
SET(CURL_MINOR_VERSION 19)
SET(CURL_PATCH_VERSION 4)

INCLUDE_REGULAR_EXPRESSION("^.*$")    # Sukender: Is it necessary?

# Setup package meta-data
# SET(PACKAGE "curl")
SET(CURL_VERSION ${CURL_MAJOR_VERSION}.${CURL_MINOR_VERSION}.${CURL_PATCH_VERSION})
# SET(PACKAGE_TARNAME "curl")
# SET(PACKAGE_NAME "curl")
# SET(PACKAGE_VERSION "-")
# SET(PACKAGE_STRING "curl-")
# SET(PACKAGE_BUGREPORT "a suitable curl mailing list => http://curl.haxx.se/mail/")
SET(OPERATING_SYSTEM "${CMAKE_SYSTEM_NAME}")
SET(OS "\"${CMAKE_SYSTEM_NAME}\"")

# Make the base headers visible to everything
# IF(NOT ${PROJECT_BINARY_DIR} EQUAL ${PROJECT_SOURCE_DIR})
   # INCLUDE_DIRECTORIES(${PROJECT_BINARY_DIR}/include)
# ENDIF()
INCLUDE_DIRECTORIES( ${CURL_SOURCE_DIR}/include )

IF(WIN32)
  SET(NATIVE_WINDOWS ON)
ENDIF()

OPTION(BUILD_CURL_EXE "Set to ON to build cURL executable." ON)
OPTION(BUILD_CURL_TESTS "Set to ON to build cURL tests." ON)
OPTION(CURL_STATICLIB "Set to ON to build libcurl with static linking." OFF)

OPTION(BUILD_DASHBOARD_REPORTS "Set to ON to activate reporting of cURL builds here http://www.cdash.org/CDashPublic/index.php?project=CURL" OFF)
IF(BUILD_DASHBOARD_REPORTS)
  #INCLUDE(Dart)
  INCLUDE(CTest)
ENDIF(BUILD_DASHBOARD_REPORTS)

IF(MSVC)
  OPTION(BUILD_RELEASE_DEBUG_DIRS "Set OFF to build each configuration to a separate directory" OFF)
  MARK_AS_ADVANCED(BUILD_RELEASE_DEBUG_DIRS)
ENDIF()

OPTION(CURL_HIDDEN_SYMBOLS "Set to ON to hide libcurl internal symbols (=hide all symbols that aren't officially external)." ON)
MARK_AS_ADVANCED(CURL_HIDDEN_SYMBOLS)

# IF(WIN32)
  # OPTION(CURL_WINDOWS_SSPI "Use windows libraries to allow NTLM authentication without openssl" ON)
  # MARK_AS_ADVANCED(CURL_WINDOWS_SSPI)
# ENDIF()

OPTION(HTTP_ONLY "disables all protocols except HTTP (This overrides all CURL_DISABLE_* options)" OFF)
MARK_AS_ADVANCED(HTTP_ONLY)
OPTION(CURL_DISABLE_FTP "disables FTP" OFF)
MARK_AS_ADVANCED(CURL_DISABLE_FTP)
OPTION(CURL_DISABLE_LDAP "disables LDAP" OFF)
MARK_AS_ADVANCED(CURL_DISABLE_LDAP)
OPTION(CURL_DISABLE_TELNET "disables Telnet" OFF)
MARK_AS_ADVANCED(CURL_DISABLE_TELNET)
OPTION(CURL_DISABLE_DICT "disables DICT" OFF)
MARK_AS_ADVANCED(CURL_DISABLE_DICT)
OPTION(CURL_DISABLE_FILE "disables FILE" OFF)
MARK_AS_ADVANCED(CURL_DISABLE_FILE)
OPTION(CURL_DISABLE_TFTP "disables TFTP" OFF)
MARK_AS_ADVANCED(CURL_DISABLE_TFTP)
OPTION(CURL_DISABLE_HTTP "disables HTTP" OFF)
MARK_AS_ADVANCED(CURL_DISABLE_HTTP)

OPTION(CURL_DISABLE_LDAPS "to disable LDAPS" OFF)
MARK_AS_ADVANCED(CURL_DISABLE_LDAPS)
IF(WIN32)
  OPTION(CURL_LDAP_WIN "Use W$ LDAP implementation" ON)
  MARK_AS_ADVANCED(CURL_LDAP_WIN)
  SET(CURL_LDAP_HYBRID OFF)
ELSE()
  OPTION(CURL_LDAP_HYBRID "W$ LDAP with non-W$ compiler" OFF)
  MARK_AS_ADVANCED(CURL_LDAP_HYBRID)
  SET(CURL_LDAP_WIN OFF)
ENDIF()

IF(HTTP_ONLY)
  SET(CURL_DISABLE_FTP ON)
  SET(CURL_DISABLE_LDAP ON)
  SET(CURL_DISABLE_TELNET ON)
  SET(CURL_DISABLE_DICT ON)
  SET(CURL_DISABLE_FILE ON)
  SET(CURL_DISABLE_TFTP ON)
ENDIF()

OPTION(CURL_DISABLE_COOKIES "to disable cookies support" OFF)
MARK_AS_ADVANCED(CURL_DISABLE_COOKIES)

OPTION(CURL_DISABLE_CRYPTO_AUTH "to disable cryptographic authentication" OFF)
MARK_AS_ADVANCED(CURL_DISABLE_CRYPTO_AUTH)
OPTION(CURL_DISABLE_VERBOSE_STRINGS "to disable verbose strings" OFF)
MARK_AS_ADVANCED(CURL_DISABLE_VERBOSE_STRINGS)
OPTION(DISABLED_THREADSAFE "Set to explicitly specify we don't want to use thread-safe functions" OFF)
MARK_AS_ADVANCED(DISABLED_THREADSAFE)
OPTION(ENABLE_IPV6 "Define if you want to enable IPv6 support" OFF)
MARK_AS_ADVANCED(ENABLE_IPV6)

IF(WIN32)
  LIST_SPACES_APPEND_ONCE(CMAKE_C_STANDARD_LIBRARIES wsock32.lib ws2_32.lib)  # bufferoverflowu.lib
  IF(CURL_DISABLE_LDAP)
    # Remove wldap32.lib from space-separated list
    STRING(REPLACE " " ";" _LIST ${CMAKE_C_STANDARD_LIBRARIES})
    LIST(REMOVE_ITEM _LIST "wldap32.lib")
    TO_LIST_SPACES(_LIST CMAKE_C_STANDARD_LIBRARIES)
  ELSE()
    # Append wldap32.lib
    LIST_SPACES_APPEND_ONCE(CMAKE_C_STANDARD_LIBRARIES wldap32.lib)
  ENDIF()
  SET(CMAKE_C_STANDARD_LIBRARIES "${CMAKE_C_STANDARD_LIBRARIES}"   CACHE STRING "" FORCE)
ENDIF()


# We need ansi c-flags, especially on HP
SET(CMAKE_C_FLAGS "${CMAKE_ANSI_CFLAGS} ${CMAKE_C_FLAGS}")
SET(CMAKE_REQUIRED_FLAGS ${CMAKE_ANSI_CFLAGS})

# Disable warnings on Borland to avoid changing 3rd party code.
IF(BORLAND)
  SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -w-")
ENDIF(BORLAND)

# If we are on AIX, do the _ALL_SOURCE magic
IF(${CMAKE_SYSTEM_NAME} MATCHES AIX)
  SET(_ALL_SOURCE 1)
ENDIF(${CMAKE_SYSTEM_NAME} MATCHES AIX)

# Include all the necessary files for macros
INCLUDE (CheckFunctionExists)
INCLUDE (CheckIncludeFile)
INCLUDE (CheckIncludeFiles)
INCLUDE (CheckLibraryExists)
INCLUDE (CheckSymbolExists)
# if crosscompiling is on, the CHECK_TYPE_SIZE macro coming with cmake uses
# TRY_COMPILE instead of TRY_RUN which makes crosscompiling easier, Alex
IF(CMAKE_CROSSCOMPILING)  
  INCLUDE ("${CMAKE_MODULE_PATH}/CheckTypeSize.cmake")
ELSE(CMAKE_CROSSCOMPILING)
  INCLUDE (CheckTypeSize)
ENDIF(CMAKE_CROSSCOMPILING)

# On windows preload settings
IF(WIN32)
  INCLUDE(${CMAKE_CURRENT_SOURCE_DIR}/CMake/Platforms/WindowsCache.cmake)
ENDIF(WIN32)

# This macro checks if the symbol exists in the library and if it
# does, it appends library to the list.
SET(CURL_LIBS "")
MACRO(CHECK_LIBRARY_EXISTS_CONCAT LIBRARY SYMBOL VARIABLE)
  CHECK_LIBRARY_EXISTS("${LIBRARY};${CURL_LIBS}" ${SYMBOL} "" 
    ${VARIABLE})
  IF(${VARIABLE})
    SET(CURL_LIBS ${CURL_LIBS} ${LIBRARY})
  ENDIF(${VARIABLE})
ENDMACRO(CHECK_LIBRARY_EXISTS_CONCAT)

# Check for all needed libraries
CHECK_LIBRARY_EXISTS_CONCAT("dl"     dlopen       HAVE_LIBDL)
#CHECK_LIBRARY_EXISTS_CONCAT("ucb"    gethostname  HAVE_LIBUCB)
CHECK_LIBRARY_EXISTS_CONCAT("socket" connect      HAVE_LIBSOCKET)
CHECK_LIBRARY_EXISTS("c" gethostbyname "" NOT_NEED_LIBNSL)

# Yellowtab Zeta needs different libraries than BeOS 5.
IF(BEOS)
  SET(NOT_NEED_LIBNSL 1)
  CHECK_LIBRARY_EXISTS_CONCAT("bind" gethostbyname HAVE_LIBBIND)
  CHECK_LIBRARY_EXISTS_CONCAT("bnetapi" closesocket HAVE_LIBBNETAPI)
ENDIF(BEOS)

IF(NOT NOT_NEED_LIBNSL)
  CHECK_LIBRARY_EXISTS_CONCAT("nsl"    gethostbyname  HAVE_LIBNSL)
ENDIF(NOT NOT_NEED_LIBNSL)

CHECK_LIBRARY_EXISTS_CONCAT("ws2_32" getch        HAVE_LIBWS2_32)
CHECK_LIBRARY_EXISTS_CONCAT("winmm"  getch        HAVE_LIBWINMM)
# IF(NOT CURL_SPECIAL_LIBZ)
#  CHECK_LIBRARY_EXISTS_CONCAT("z"      inflateEnd   HAVE_LIBZ)
# ENDIF(NOT CURL_SPECIAL_LIBZ)

OPTION(CMAKE_USE_OPENSSL "Use OpenSSL code. Experimental" ON)
MARK_AS_ADVANCED(CMAKE_USE_OPENSSL)
IF(CMAKE_USE_OPENSSL)
  IF(WIN32)
  FIND_PACKAGE(OpenSSL)
  IF(OPENSSL_FOUND)
    SET(USE_SSLEAY TRUE)
    SET(USE_OPENSSL TRUE)
    LIST(APPEND CURL_LIBS ${OPENSSL_LIBRARIES} )
  ENDIF()
    #FIND_LIBRARY(LIBEAY NAMES libeay32)
    #LIST(APPEND CURL_LIBS ${LIBEAY} )
  ELSE(WIN32)
    CHECK_LIBRARY_EXISTS_CONCAT("crypto" CRYPTO_lock  HAVE_LIBCRYPTO)
    CHECK_LIBRARY_EXISTS_CONCAT("ssl"    SSL_connect  HAVE_LIBSSL)
  ENDIF(WIN32)
ENDIF(CMAKE_USE_OPENSSL)

# Check for idn
CHECK_LIBRARY_EXISTS_CONCAT("idn" idna_to_ascii_lz HAVE_LIBIDN)

# Check for LDAP
CHECK_LIBRARY_EXISTS_CONCAT("ldap" ldap_init HAVE_LIBLDAP)
# if(NOT HAVE_LIBLDAP)
    # SET(CURL_DISABLE_LDAP ON)
# endif(NOT HAVE_LIBLDAP)

# Check for symbol dlopen (same as HAVE_LIBDL)
CHECK_LIBRARY_EXISTS("${CURL_LIBS}" dlopen "" HAVE_DLOPEN)

# For other tests to use the same libraries
SET(CMAKE_REQUIRED_LIBRARIES ${CURL_LIBS})

OPTION(CURL_ZLIB "Set to ON to enable building cURL with zlib support." ON)
SET(HAVE_LIBZ OFF)
SET(HAVE_ZLIB_H OFF)
SET(HAVE_ZLIB OFF)
IF(CURL_ZLIB)  # AND CURL_CONFIG_HAS_BEEN_RUN_BEFORE
  FIND_PACKAGE(ZLIB)
  IF(ZLIB_FOUND)
    SET(HAVE_ZLIB_H ON)
    SET(HAVE_ZLIB ON)
    SET(HAVE_LIBZ ON)
  ENDIF()
ENDIF()

# If we have features.h, then do the _BSD_SOURCE magic
CHECK_INCLUDE_FILE("features.h"       HAVE_FEATURES_H)

# Check if header file exists and add it to the list.
MACRO(CHECK_INCLUDE_FILE_CONCAT FILE VARIABLE)
  CHECK_INCLUDE_FILES("${CURL_INCLUDES};${FILE}" ${VARIABLE})
  IF(${VARIABLE})
    SET(CURL_INCLUDES ${CURL_INCLUDES} ${FILE})
    SET(CURL_TEST_DEFINES "${CURL_TEST_DEFINES} -D${VARIABLE}")
  ENDIF(${VARIABLE})
ENDMACRO(CHECK_INCLUDE_FILE_CONCAT)


# Check for header files
IF(NOT UNIX)
  CHECK_INCLUDE_FILE_CONCAT("ws2tcpip.h"     HAVE_WS2TCPIP_H)
  CHECK_INCLUDE_FILE_CONCAT("winsock2.h"     HAVE_WINSOCK2_H)
ENDIF(NOT UNIX)
CHECK_INCLUDE_FILE_CONCAT("stdio.h"          HAVE_STDIO_H)
IF(NOT UNIX)
  CHECK_INCLUDE_FILE_CONCAT("windows.h"      HAVE_WINDOWS_H)
  CHECK_INCLUDE_FILE_CONCAT("winsock.h"      HAVE_WINSOCK_H)
ENDIF(NOT UNIX)

CHECK_INCLUDE_FILE_CONCAT("inttypes.h"       HAVE_INTTYPES_H)
CHECK_INCLUDE_FILE_CONCAT("sys/filio.h"      HAVE_SYS_FILIO_H)
CHECK_INCLUDE_FILE_CONCAT("sys/ioctl.h"      HAVE_SYS_IOCTL_H)
CHECK_INCLUDE_FILE_CONCAT("sys/param.h"      HAVE_SYS_PARAM_H)
CHECK_INCLUDE_FILE_CONCAT("sys/poll.h"       HAVE_SYS_POLL_H)
CHECK_INCLUDE_FILE_CONCAT("sys/resource.h"   HAVE_SYS_RESOURCE_H)
CHECK_INCLUDE_FILE_CONCAT("sys/select.h"     HAVE_SYS_SELECT_H)
CHECK_INCLUDE_FILE_CONCAT("sys/socket.h"     HAVE_SYS_SOCKET_H)
CHECK_INCLUDE_FILE_CONCAT("sys/sockio.h"     HAVE_SYS_SOCKIO_H)
CHECK_INCLUDE_FILE_CONCAT("sys/stat.h"       HAVE_SYS_STAT_H)
CHECK_INCLUDE_FILE_CONCAT("sys/time.h"       HAVE_SYS_TIME_H)
CHECK_INCLUDE_FILE_CONCAT("sys/types.h"      HAVE_SYS_TYPES_H)
CHECK_INCLUDE_FILE_CONCAT("sys/uio.h"        HAVE_SYS_UIO_H)
CHECK_INCLUDE_FILE_CONCAT("sys/un.h"         HAVE_SYS_UN_H)
CHECK_INCLUDE_FILE_CONCAT("sys/utime.h"      HAVE_SYS_UTIME_H)
CHECK_INCLUDE_FILE_CONCAT("alloca.h"         HAVE_ALLOCA_H)
CHECK_INCLUDE_FILE_CONCAT("arpa/inet.h"      HAVE_ARPA_INET_H)
CHECK_INCLUDE_FILE_CONCAT("arpa/tftp.h"      HAVE_ARPA_TFTP_H)
CHECK_INCLUDE_FILE_CONCAT("assert.h"         HAVE_ASSERT_H)
CHECK_INCLUDE_FILE_CONCAT("crypto.h"         HAVE_CRYPTO_H)
CHECK_INCLUDE_FILE_CONCAT("des.h"            HAVE_DES_H)
CHECK_INCLUDE_FILE_CONCAT("err.h"            HAVE_ERR_H)
CHECK_INCLUDE_FILE_CONCAT("errno.h"          HAVE_ERRNO_H)
CHECK_INCLUDE_FILE_CONCAT("fcntl.h"          HAVE_FCNTL_H)
CHECK_INCLUDE_FILE_CONCAT("gssapi/gssapi.h"  HAVE_GSSAPI_GSSAPI_H)
CHECK_INCLUDE_FILE_CONCAT("gssapi/gssapi_generic.h" HAVE_GSSAPI_GSSAPI_GENERIC_H)
CHECK_INCLUDE_FILE_CONCAT("gssapi/gssapi_krb5.h" HAVE_GSSAPI_GSSAPI_KRB5_H)
CHECK_INCLUDE_FILE_CONCAT("idn-free.h"       HAVE_IDN_FREE_H)
CHECK_INCLUDE_FILE_CONCAT("ifaddrs.h"        HAVE_IFADDRS_H)
CHECK_INCLUDE_FILE_CONCAT("io.h"             HAVE_IO_H)
CHECK_INCLUDE_FILE_CONCAT("krb.h"            HAVE_KRB_H)
CHECK_INCLUDE_FILE_CONCAT("libgen.h"         HAVE_LIBGEN_H)
CHECK_INCLUDE_FILE_CONCAT("libssh2.h"        HAVE_LIBSSH2_H)
CHECK_INCLUDE_FILE_CONCAT("limits.h"         HAVE_LIMITS_H)
CHECK_INCLUDE_FILE_CONCAT("locale.h"         HAVE_LOCALE_H)
CHECK_INCLUDE_FILE_CONCAT("net/if.h"         HAVE_NET_IF_H)
CHECK_INCLUDE_FILE_CONCAT("netdb.h"          HAVE_NETDB_H)
CHECK_INCLUDE_FILE_CONCAT("netinet/in.h"     HAVE_NETINET_IN_H)
CHECK_INCLUDE_FILE_CONCAT("netinet/tcp.h"    HAVE_NETINET_TCP_H)
CHECK_INCLUDE_FILE_CONCAT("openssl/crypto.h" HAVE_OPENSSL_CRYPTO_H)
CHECK_INCLUDE_FILE_CONCAT("openssl/engine.h" HAVE_OPENSSL_ENGINE_H)
CHECK_INCLUDE_FILE_CONCAT("openssl/err.h"    HAVE_OPENSSL_ERR_H)
CHECK_INCLUDE_FILE_CONCAT("openssl/pem.h"    HAVE_OPENSSL_PEM_H)
CHECK_INCLUDE_FILE_CONCAT("openssl/pkcs12.h" HAVE_OPENSSL_PKCS12_H)
CHECK_INCLUDE_FILE_CONCAT("openssl/rsa.h"    HAVE_OPENSSL_RSA_H)
CHECK_INCLUDE_FILE_CONCAT("openssl/ssl.h"    HAVE_OPENSSL_SSL_H)
CHECK_INCLUDE_FILE_CONCAT("openssl/x509.h"   HAVE_OPENSSL_X509_H)
CHECK_INCLUDE_FILE_CONCAT("pem.h"            HAVE_PEM_H)
CHECK_INCLUDE_FILE_CONCAT("poll.h"           HAVE_POLL_H)
CHECK_INCLUDE_FILE_CONCAT("pwd.h"            HAVE_PWD_H)
CHECK_INCLUDE_FILE_CONCAT("rsa.h"            HAVE_RSA_H)
CHECK_INCLUDE_FILE_CONCAT("setjmp.h"         HAVE_SETJMP_H)
CHECK_INCLUDE_FILE_CONCAT("sgtty.h"          HAVE_SGTTY_H)
CHECK_INCLUDE_FILE_CONCAT("signal.h"         HAVE_SIGNAL_H)
CHECK_INCLUDE_FILE_CONCAT("ssl.h"            HAVE_SSL_H)
CHECK_INCLUDE_FILE_CONCAT("stdbool.h"        HAVE_STDBOOL_H)
CHECK_INCLUDE_FILE_CONCAT("stdint.h"         HAVE_STDINT_H)
CHECK_INCLUDE_FILE_CONCAT("stdio.h"          HAVE_STDIO_H)
CHECK_INCLUDE_FILE_CONCAT("stdlib.h"         HAVE_STDLIB_H)
CHECK_INCLUDE_FILE_CONCAT("string.h"         HAVE_STRING_H)
CHECK_INCLUDE_FILE_CONCAT("strings.h"        HAVE_STRINGS_H)
CHECK_INCLUDE_FILE_CONCAT("stropts.h"        HAVE_STROPTS_H)
CHECK_INCLUDE_FILE_CONCAT("termio.h"         HAVE_TERMIO_H)
CHECK_INCLUDE_FILE_CONCAT("termios.h"        HAVE_TERMIOS_H)
CHECK_INCLUDE_FILE_CONCAT("time.h"           HAVE_TIME_H)
CHECK_INCLUDE_FILE_CONCAT("tld.h"            HAVE_TLD_H)
CHECK_INCLUDE_FILE_CONCAT("unistd.h"         HAVE_UNISTD_H)
CHECK_INCLUDE_FILE_CONCAT("utime.h"          HAVE_UTIME_H)
CHECK_INCLUDE_FILE_CONCAT("x509.h"           HAVE_X509_H)

CHECK_INCLUDE_FILE_CONCAT("process.h"        HAVE_PROCESS_H)
CHECK_INCLUDE_FILE_CONCAT("stddef.h"         HAVE_STDDEF_H)
CHECK_INCLUDE_FILE_CONCAT("dlfcn.h"          HAVE_DLFCN_H)
CHECK_INCLUDE_FILE_CONCAT("malloc.h"         HAVE_MALLOC_H)
CHECK_INCLUDE_FILE_CONCAT("memory.h"         HAVE_MEMORY_H)
CHECK_INCLUDE_FILE_CONCAT("ldap.h"           HAVE_LDAP_H)
CHECK_INCLUDE_FILE_CONCAT("netinet/if_ether.h" HAVE_NETINET_IF_ETHER_H)
CHECK_INCLUDE_FILE_CONCAT("stdint.h"        HAVE_STDINT_H)
CHECK_INCLUDE_FILE_CONCAT("sockio.h"        HAVE_SOCKIO_H)
CHECK_INCLUDE_FILE_CONCAT("sys/utsname.h"   HAVE_SYS_UTSNAME_H)
CHECK_INCLUDE_FILE_CONCAT("idna.h"          HAVE_IDNA_H)

IF(CMAKE_USE_OPENSSL)
  CHECK_INCLUDE_FILE_CONCAT("openssl/rand.h"   HAVE_OPENSSL_RAND_H)
ENDIF(CMAKE_USE_OPENSSL)


CHECK_TYPE_SIZE(size_t  SIZEOF_SIZE_T)
CHECK_TYPE_SIZE(ssize_t  SIZEOF_SSIZE_T)
CHECK_TYPE_SIZE("long long"  SIZEOF_LONG_LONG)
CHECK_TYPE_SIZE("long"  SIZEOF_LONG)
CHECK_TYPE_SIZE("int"  SIZEOF_INT)
CHECK_TYPE_SIZE("__int64"  SIZEOF___INT64)
CHECK_TYPE_SIZE("long double"  SIZEOF_LONG_DOUBLE)
CHECK_TYPE_SIZE("time_t"  SIZEOF_TIME_T)
IF(NOT HAVE_SIZEOF_SSIZE_T)
  IF(SIZEOF_LONG EQUAL SIZEOF_SIZE_T)
    SET(ssize_t long)
  ENDIF(SIZEOF_LONG EQUAL SIZEOF_SIZE_T)
  IF(NOT ssize_t AND SIZEOF___INT64 EQUAL SIZEOF_SIZE_T)
    SET(ssize_t __int64)
  ENDIF(NOT ssize_t AND SIZEOF___INT64 EQUAL SIZEOF_SIZE_T)
ENDIF(NOT HAVE_SIZEOF_SSIZE_T)

# Different sizeofs, etc.

#    define CURL_SIZEOF_LONG        4
#    define CURL_TYPEOF_CURL_OFF_T  long long
#    define CURL_FORMAT_CURL_OFF_T  "lld"
#    define CURL_FORMAT_CURL_OFF_TU "llu"
#    define CURL_FORMAT_OFF_T       "%lld"
#    define CURL_SIZEOF_CURL_OFF_T  8
#    define CURL_SUFFIX_CURL_OFF_T  LL
#    define CURL_SUFFIX_CURL_OFF_TU ULL

set(CURL_SIZEOF_LONG ${SIZEOF_LONG})

if(SIZEOF_LONG EQUAL 8)
  set(CURL_TYPEOF_CURL_OFF_T long)
  set(CURL_SIZEOF_CURL_OFF_T 8)
  set(CURL_FORMAT_CURL_OFF_T "ld")
  set(CURL_FORMAT_CURL_OFF_TU "lu")
  set(CURL_FORMAT_OFF_T "%ld")
  set(CURL_SUFFIX_CURL_OFF_T L)
  set(CURL_SUFFIX_CURL_OFF_TU LU)
endif(SIZEOF_LONG EQUAL 8)

if(SIZEOF_LONG_LONG EQUAL 8)
  set(CURL_TYPEOF_CURL_OFF_T "long long")
  set(CURL_SIZEOF_CURL_OFF_T 8)
  set(CURL_FORMAT_CURL_OFF_T "lld")
  set(CURL_FORMAT_CURL_OFF_TU "llu")
  set(CURL_FORMAT_OFF_T "%lld")
  set(CURL_SUFFIX_CURL_OFF_T LL)
  set(CURL_SUFFIX_CURL_OFF_TU LLU)
endif(SIZEOF_LONG_LONG EQUAL 8)

if(NOT CURL_TYPEOF_CURL_OFF_T)
  set(CURL_TYPEOF_CURL_OFF_T ${ssize_t})
  set(CURL_SIZEOF_CURL_OFF_T ${SIZEOF_SSIZE_T})
  # TODO: need adjustment here.
  set(CURL_FORMAT_CURL_OFF_T "ld")
  set(CURL_FORMAT_CURL_OFF_TU "lu")
  set(CURL_FORMAT_OFF_T "%ld")
  set(CURL_SUFFIX_CURL_OFF_T L)
  set(CURL_SUFFIX_CURL_OFF_TU LU)
endif(NOT CURL_TYPEOF_CURL_OFF_T)

IF(HAVE_SIZEOF_LONG_LONG)
  SET(HAVE_LONGLONG 1)
  SET(HAVE_LL 1)
ENDIF(HAVE_SIZEOF_LONG_LONG)

FIND_FILE(RANDOM_FILE urandom /dev)
MARK_AS_ADVANCED(RANDOM_FILE)

# Check for some functions that are used
CHECK_SYMBOL_EXISTS(basename      "${CURL_INCLUDES}" HAVE_BASENAME)
CHECK_SYMBOL_EXISTS(socket        "${CURL_INCLUDES}" HAVE_SOCKET)
CHECK_SYMBOL_EXISTS(poll          "${CURL_INCLUDES}" HAVE_POLL)
CHECK_SYMBOL_EXISTS(select        "${CURL_INCLUDES}" HAVE_SELECT)
CHECK_SYMBOL_EXISTS(strdup        "${CURL_INCLUDES}" HAVE_STRDUP)
CHECK_SYMBOL_EXISTS(strstr        "${CURL_INCLUDES}" HAVE_STRSTR)
CHECK_SYMBOL_EXISTS(strtok_r      "${CURL_INCLUDES}" HAVE_STRTOK_R)
CHECK_SYMBOL_EXISTS(strftime      "${CURL_INCLUDES}" HAVE_STRFTIME)
CHECK_SYMBOL_EXISTS(uname         "${CURL_INCLUDES}" HAVE_UNAME)
CHECK_SYMBOL_EXISTS(strcasecmp    "${CURL_INCLUDES}" HAVE_STRCASECMP)
CHECK_SYMBOL_EXISTS(stricmp       "${CURL_INCLUDES}" HAVE_STRICMP)
CHECK_SYMBOL_EXISTS(strcmpi       "${CURL_INCLUDES}" HAVE_STRCMPI)
CHECK_SYMBOL_EXISTS(strncmpi      "${CURL_INCLUDES}" HAVE_STRNCMPI)
CHECK_SYMBOL_EXISTS(alarm         "${CURL_INCLUDES}" HAVE_ALARM)
IF(NOT HAVE_STRNCMPI)
  SET(HAVE_STRCMPI)
ENDIF(NOT HAVE_STRNCMPI)
CHECK_SYMBOL_EXISTS(gethostbyaddr "${CURL_INCLUDES}" HAVE_GETHOSTBYADDR)
CHECK_SYMBOL_EXISTS(gethostbyaddr_r "${CURL_INCLUDES}" HAVE_GETHOSTBYADDR_R)
CHECK_SYMBOL_EXISTS(gettimeofday  "${CURL_INCLUDES}" HAVE_GETTIMEOFDAY)
CHECK_SYMBOL_EXISTS(inet_addr     "${CURL_INCLUDES}" HAVE_INET_ADDR)
CHECK_SYMBOL_EXISTS(inet_ntoa     "${CURL_INCLUDES}" HAVE_INET_NTOA)
CHECK_SYMBOL_EXISTS(inet_ntoa_r   "${CURL_INCLUDES}" HAVE_INET_NTOA_R)
CHECK_SYMBOL_EXISTS(tcsetattr     "${CURL_INCLUDES}" HAVE_TCSETATTR)
CHECK_SYMBOL_EXISTS(tcgetattr     "${CURL_INCLUDES}" HAVE_TCGETATTR)
CHECK_SYMBOL_EXISTS(perror        "${CURL_INCLUDES}" HAVE_PERROR)
CHECK_SYMBOL_EXISTS(closesocket   "${CURL_INCLUDES}" HAVE_CLOSESOCKET)
CHECK_SYMBOL_EXISTS(setvbuf       "${CURL_INCLUDES}" HAVE_SETVBUF)
CHECK_SYMBOL_EXISTS(sigsetjmp     "${CURL_INCLUDES}" HAVE_SIGSETJMP)
CHECK_SYMBOL_EXISTS(getpass_r     "${CURL_INCLUDES}" HAVE_GETPASS_R)
CHECK_SYMBOL_EXISTS(strlcat       "${CURL_INCLUDES}" HAVE_STRLCAT)
CHECK_SYMBOL_EXISTS(getpwuid      "${CURL_INCLUDES}" HAVE_GETPWUID)
CHECK_SYMBOL_EXISTS(geteuid       "${CURL_INCLUDES}" HAVE_GETEUID)
CHECK_SYMBOL_EXISTS(utime         "${CURL_INCLUDES}" HAVE_UTIME)
IF(CMAKE_USE_OPENSSL)
  CHECK_SYMBOL_EXISTS(RAND_status   "${CURL_INCLUDES}" HAVE_RAND_STATUS)
  CHECK_SYMBOL_EXISTS(RAND_screen   "${CURL_INCLUDES}" HAVE_RAND_SCREEN)
  CHECK_SYMBOL_EXISTS(RAND_egd      "${CURL_INCLUDES}" HAVE_RAND_EGD)
  CHECK_SYMBOL_EXISTS(CRYPTO_cleanup_all_ex_data "${CURL_INCLUDES}" 
    HAVE_CRYPTO_CLEANUP_ALL_EX_DATA)
  IF(HAVE_LIBCRYPTO AND HAVE_LIBSSL)
  SET(USE_OPENSSL 1)
  SET(USE_SSLEAY 1)
  ENDIF(HAVE_LIBCRYPTO AND HAVE_LIBSSL)
ENDIF(CMAKE_USE_OPENSSL)
CHECK_SYMBOL_EXISTS(gmtime_r      "${CURL_INCLUDES}" HAVE_GMTIME_R)
CHECK_SYMBOL_EXISTS(localtime_r   "${CURL_INCLUDES}" HAVE_LOCALTIME_R)

CHECK_SYMBOL_EXISTS(gethostbyname   "${CURL_INCLUDES}" HAVE_GETHOSTBYNAME)
CHECK_SYMBOL_EXISTS(gethostbyname_r "${CURL_INCLUDES}" HAVE_GETHOSTBYNAME_R)

CHECK_SYMBOL_EXISTS(signal        "${CURL_INCLUDES}" HAVE_SIGNAL_FUNC)
CHECK_SYMBOL_EXISTS(SIGALRM       "${CURL_INCLUDES}" HAVE_SIGNAL_MACRO)
IF(HAVE_SIGNAL_FUNC AND HAVE_SIGNAL_MACRO)
  SET(HAVE_SIGNAL 1)
ENDIF(HAVE_SIGNAL_FUNC AND HAVE_SIGNAL_MACRO)
CHECK_SYMBOL_EXISTS(uname          "${CURL_INCLUDES}" HAVE_UNAME)
CHECK_SYMBOL_EXISTS(strtoll        "${CURL_INCLUDES}" HAVE_STRTOLL)
CHECK_SYMBOL_EXISTS(_strtoi64      "${CURL_INCLUDES}" HAVE__STRTOI64)
CHECK_SYMBOL_EXISTS(strerror_r     "${CURL_INCLUDES}" HAVE_STRERROR_R)
CHECK_SYMBOL_EXISTS(siginterrupt   "${CURL_INCLUDES}" HAVE_SIGINTERRUPT)
CHECK_SYMBOL_EXISTS(perror         "${CURL_INCLUDES}" HAVE_PERROR)
CHECK_SYMBOL_EXISTS(fork           "${CURL_INCLUDES}" HAVE_FORK)
CHECK_SYMBOL_EXISTS(freeaddrinfo   "${CURL_INCLUDES}" HAVE_FREEADDRINFO)
CHECK_SYMBOL_EXISTS(freeifaddrs    "${CURL_INCLUDES}" HAVE_FREEIFADDRS)
CHECK_SYMBOL_EXISTS(pipe           "${CURL_INCLUDES}" HAVE_PIPE)
CHECK_SYMBOL_EXISTS(ftruncate      "${CURL_INCLUDES}" HAVE_FTRUNCATE)
CHECK_SYMBOL_EXISTS(getprotobyname "${CURL_INCLUDES}" HAVE_GETPROTOBYNAME)
CHECK_SYMBOL_EXISTS(getrlimit      "${CURL_INCLUDES}" HAVE_GETRLIMIT)
CHECK_SYMBOL_EXISTS(idn_free       "${CURL_INCLUDES}" HAVE_IDN_FREE)
CHECK_SYMBOL_EXISTS(idna_strerror  "${CURL_INCLUDES}" HAVE_IDNA_STRERROR)
CHECK_SYMBOL_EXISTS(tld_strerror   "${CURL_INCLUDES}" HAVE_TLD_STRERROR)
CHECK_SYMBOL_EXISTS(setlocale      "${CURL_INCLUDES}" HAVE_SETLOCALE)
CHECK_SYMBOL_EXISTS(setrlimit      "${CURL_INCLUDES}" HAVE_SETRLIMIT)
CHECK_SYMBOL_EXISTS(fcntl          "${CURL_INCLUDES}" HAVE_FCNTL)
CHECK_SYMBOL_EXISTS(ioctl          "${CURL_INCLUDES}" HAVE_IOCTL)
CHECK_SYMBOL_EXISTS(setsockopt     "${CURL_INCLUDES}" HAVE_SETSOCKOPT)

# symbol exists in win32, but function does not.
CHECK_FUNCTION_EXISTS(inet_pton HAVE_INET_PTON)

# sigaction and sigsetjmp are special. Use special mechanism for
# detecting those, but only if previous attempt failed.
IF(HAVE_SIGNAL_H)
  CHECK_SYMBOL_EXISTS(sigaction "signal.h" HAVE_SIGACTION)
ENDIF(HAVE_SIGNAL_H)

IF(NOT HAVE_SIGSETJMP)
  IF(HAVE_SETJMP_H)
    CHECK_SYMBOL_EXISTS(sigsetjmp "setjmp.h" HAVE_MACRO_SIGSETJMP)
    IF(HAVE_MACRO_SIGSETJMP)
      SET(HAVE_SIGSETJMP 1)
    ENDIF(HAVE_MACRO_SIGSETJMP)
  ENDIF(HAVE_SETJMP_H)
ENDIF(NOT HAVE_SIGSETJMP)

# If there is no stricmp(), do not allow LDAP to parse URLs
if(NOT HAVE_STRICMP)
    SET(HAVE_LDAP_URL_PARSE 1)
endif(NOT HAVE_STRICMP)

# For other curl specific tests, use this macro.
MACRO(CURL_INTERNAL_TEST CURL_TEST)
  IF("${CURL_TEST}" MATCHES "^${CURL_TEST}$")
    SET(MACRO_CHECK_FUNCTION_DEFINITIONS 
      "-D${CURL_TEST} ${CURL_TEST_DEFINES} ${CMAKE_REQUIRED_FLAGS}")
    IF(CMAKE_REQUIRED_LIBRARIES)
      SET(CURL_TEST_ADD_LIBRARIES
        "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
    ENDIF(CMAKE_REQUIRED_LIBRARIES)

    MESSAGE(STATUS "Performing Curl Test ${CURL_TEST}")
    TRY_COMPILE(${CURL_TEST}
      ${CMAKE_BINARY_DIR}
      ${CMAKE_CURRENT_SOURCE_DIR}/CMake/CurlTests.c
      CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS}
      "${CURL_TEST_ADD_LIBRARIES}"
      OUTPUT_VARIABLE OUTPUT)
    IF(${CURL_TEST})
      SET(${CURL_TEST} 1 CACHE INTERNAL "Curl test ${FUNCTION}")
      MESSAGE(STATUS "Performing Curl Test ${CURL_TEST} - Success")
      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log 
        "Performing Curl Test ${CURL_TEST} passed with the following output:\n"
        "${OUTPUT}\n")
    ELSE(${CURL_TEST})
      MESSAGE(STATUS "Performing Curl Test ${CURL_TEST} - Failed")
      SET(${CURL_TEST} "" CACHE INTERNAL "Curl test ${FUNCTION}")
      FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log 
        "Performing Curl Test ${CURL_TEST} failed with the following output:\n"
        "${OUTPUT}\n")
    ENDIF(${CURL_TEST})
  ENDIF("${CURL_TEST}" MATCHES "^${CURL_TEST}$")
ENDMACRO(CURL_INTERNAL_TEST) 

MACRO(CURL_INTERNAL_TEST_RUN CURL_TEST)
  IF("${CURL_TEST}_COMPILE" MATCHES "^${CURL_TEST}_COMPILE$")
    SET(MACRO_CHECK_FUNCTION_DEFINITIONS 
      "-D${CURL_TEST} ${CMAKE_REQUIRED_FLAGS}")
    IF(CMAKE_REQUIRED_LIBRARIES)
      SET(CURL_TEST_ADD_LIBRARIES
        "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
    ENDIF(CMAKE_REQUIRED_LIBRARIES)

    MESSAGE(STATUS "Performing Curl Test ${CURL_TEST}")
    TRY_RUN(${CURL_TEST} ${CURL_TEST}_COMPILE
      ${CMAKE_BINARY_DIR}
      ${CMAKE_CURRENT_SOURCE_DIR}/CMake/CurlTests.c
      CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS}
      "${CURL_TEST_ADD_LIBRARIES}"
      OUTPUT_VARIABLE OUTPUT)
    IF(${CURL_TEST}_COMPILE AND NOT ${CURL_TEST})
      SET(${CURL_TEST} 1 CACHE INTERNAL "Curl test ${FUNCTION}")
      MESSAGE(STATUS "Performing Curl Test ${CURL_TEST} - Success")
    ELSE(${CURL_TEST}_COMPILE AND NOT ${CURL_TEST})
      MESSAGE(STATUS "Performing Curl Test ${CURL_TEST} - Failed")
      SET(${CURL_TEST} "" CACHE INTERNAL "Curl test ${FUNCTION}")
      FILE(APPEND "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log"
        "Performing Curl Test ${CURL_TEST} failed with the following output:\n"
        "${OUTPUT}")
      IF(${CURL_TEST}_COMPILE)
        FILE(APPEND 
          "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log" 
          "There was a problem running this test\n")
      ENDIF(${CURL_TEST}_COMPILE)
      FILE(APPEND "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log" 
        "\n\n")
    ENDIF(${CURL_TEST}_COMPILE AND NOT ${CURL_TEST})
  ENDIF("${CURL_TEST}_COMPILE" MATCHES "^${CURL_TEST}_COMPILE$")
ENDMACRO(CURL_INTERNAL_TEST_RUN) 

# Do curl specific tests
FOREACH(CURL_TEST 
    HAVE_FCNTL_O_NONBLOCK
    HAVE_IOCTLSOCKET
    HAVE_IOCTLSOCKET_CAMEL
    HAVE_IOCTLSOCKET_CAMEL_FIONBIO
    HAVE_IOCTLSOCKET_FIONBIO
    HAVE_IOCTL_FIONBIO
    HAVE_IOCTL_SIOCGIFADDR
    HAVE_SETSOCKOPT_SO_NONBLOCK
    HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID
    TIME_WITH_SYS_TIME
    HAVE_O_NONBLOCK
    HAVE_GETHOSTBYADDR_R_5
    HAVE_GETHOSTBYADDR_R_7
    HAVE_GETHOSTBYADDR_R_8
    HAVE_GETHOSTBYADDR_R_5_REENTRANT
    HAVE_GETHOSTBYADDR_R_7_REENTRANT
    HAVE_GETHOSTBYADDR_R_8_REENTRANT
    HAVE_GETHOSTBYNAME_R_3
    HAVE_GETHOSTBYNAME_R_5
    HAVE_GETHOSTBYNAME_R_6
    HAVE_GETHOSTBYNAME_R_3_REENTRANT
    HAVE_GETHOSTBYNAME_R_5_REENTRANT
    HAVE_GETHOSTBYNAME_R_6_REENTRANT
    HAVE_SOCKLEN_T
    HAVE_IN_ADDR_T
    HAVE_BOOL_T
    STDC_HEADERS
    RETSIGTYPE_TEST
    HAVE_INET_NTOA_R_DECL
    HAVE_INET_NTOA_R_DECL_REENTRANT
    HAVE_GETADDRINFO
    HAVE_FILE_OFFSET_BITS
    )
  CURL_INTERNAL_TEST(${CURL_TEST})
ENDFOREACH(CURL_TEST)
IF(HAVE_FILE_OFFSET_BITS)
  SET(_FILE_OFFSET_BITS 64)
ENDIF(HAVE_FILE_OFFSET_BITS)

FOREACH(CURL_TEST 
    HAVE_GLIBC_STRERROR_R
    HAVE_POSIX_STRERROR_R
    )
  CURL_INTERNAL_TEST_RUN(${CURL_TEST})
ENDFOREACH(CURL_TEST)

# Check for reentrant
FOREACH(CURL_TEST
    HAVE_GETHOSTBYADDR_R_5
    HAVE_GETHOSTBYADDR_R_7
    HAVE_GETHOSTBYADDR_R_8
    HAVE_GETHOSTBYNAME_R_3
    HAVE_GETHOSTBYNAME_R_5
    HAVE_GETHOSTBYNAME_R_6
    HAVE_INET_NTOA_R_DECL_REENTRANT)
  IF(NOT ${CURL_TEST})
    IF(${CURL_TEST}_REENTRANT)
      SET(NEED_REENTRANT 1)
    ENDIF(${CURL_TEST}_REENTRANT)
  ENDIF(NOT ${CURL_TEST})
ENDFOREACH(CURL_TEST)

IF(NEED_REENTRANT)
  FOREACH(CURL_TEST
      HAVE_GETHOSTBYADDR_R_5
      HAVE_GETHOSTBYADDR_R_7
      HAVE_GETHOSTBYADDR_R_8
      HAVE_GETHOSTBYNAME_R_3
      HAVE_GETHOSTBYNAME_R_5
      HAVE_GETHOSTBYNAME_R_6)
    SET(${CURL_TEST} 0)
    IF(${CURL_TEST}_REENTRANT)
      SET(${CURL_TEST} 1)
    ENDIF(${CURL_TEST}_REENTRANT)
  ENDFOREACH(CURL_TEST)
ENDIF(NEED_REENTRANT)

IF(HAVE_INET_NTOA_R_DECL_REENTRANT)
  SET(HAVE_INET_NTOA_R_DECL 1)
  SET(NEED_REENTRANT 1)
ENDIF(HAVE_INET_NTOA_R_DECL_REENTRANT)

# Some other minor tests

IF(NOT HAVE_SOCKLEN_T)
  SET(socklen_t "int")
ENDIF(NOT HAVE_SOCKLEN_T)

IF(NOT HAVE_IN_ADDR_T)
  SET(in_addr_t "unsigned long")
ENDIF(NOT HAVE_IN_ADDR_T)

# Fix libz / zlib.h

IF(NOT CURL_SPECIAL_LIBZ)
  IF(NOT HAVE_LIBZ)
    SET(HAVE_ZLIB_H 0)
  ENDIF(NOT HAVE_LIBZ)

  IF(NOT HAVE_ZLIB_H)
    SET(HAVE_LIBZ 0)
  ENDIF(NOT HAVE_ZLIB_H)
ENDIF(NOT CURL_SPECIAL_LIBZ)

IF(_FILE_OFFSET_BITS)
  SET(_FILE_OFFSET_BITS 64)
ENDIF(_FILE_OFFSET_BITS)
SET(CMAKE_REQUIRED_FLAGS "-D_FILE_OFFSET_BITS=64")
SET(CMAKE_EXTRA_INCLUDE_FILES "${CMAKE_CURRENT_SOURCE_DIR}/curl/curl.h")
CHECK_TYPE_SIZE("curl_off_t" SIZEOF_CURL_OFF_T)
SET(CMAKE_EXTRA_INCLUDE_FILES)
SET(CMAKE_REQUIRED_FLAGS)


# Check for nonblocking
SET(HAVE_DISABLED_NONBLOCKING 1)
IF(HAVE_FIONBIO OR 
    HAVE_IOCTLSOCKET OR
    HAVE_IOCTLSOCKET_CASE OR
    HAVE_O_NONBLOCK)
  SET(HAVE_DISABLED_NONBLOCKING)
ENDIF(HAVE_FIONBIO OR 
  HAVE_IOCTLSOCKET OR
  HAVE_IOCTLSOCKET_CASE OR
  HAVE_O_NONBLOCK)

IF(RETSIGTYPE_TEST)
  SET(RETSIGTYPE void)
ELSE(RETSIGTYPE_TEST)
  SET(RETSIGTYPE int)
ENDIF(RETSIGTYPE_TEST)

IF(CMAKE_COMPILER_IS_GNUCC AND APPLE)
  INCLUDE(CheckCCompilerFlag)
  CHECK_C_COMPILER_FLAG(-Wno-long-double HAVE_C_FLAG_Wno_long_double)
  IF(HAVE_C_FLAG_Wno_long_double)
    # The Mac version of GCC warns about use of long double.  Disable it.
    GET_SOURCE_FILE_PROPERTY(MPRINTF_COMPILE_FLAGS mprintf.c COMPILE_FLAGS)
    IF(MPRINTF_COMPILE_FLAGS)
      SET(MPRINTF_COMPILE_FLAGS "${MPRINTF_COMPILE_FLAGS} -Wno-long-double")
    ELSE(MPRINTF_COMPILE_FLAGS)
      SET(MPRINTF_COMPILE_FLAGS "-Wno-long-double")
    ENDIF(MPRINTF_COMPILE_FLAGS)
    SET_SOURCE_FILES_PROPERTIES(mprintf.c PROPERTIES
      COMPILE_FLAGS ${MPRINTF_COMPILE_FLAGS})
  ENDIF(HAVE_C_FLAG_Wno_long_double)
ENDIF(CMAKE_COMPILER_IS_GNUCC AND APPLE)

INCLUDE(CMake/OtherTests.cmake)

ADD_DEFINITIONS(-DHAVE_CONFIG_H)

# For windows, do not allow the compiler to use default target (Vista).
IF(WIN32)
  ADD_DEFINITIONS(-D_WIN32_WINNT=0x0501)
ENDIF(WIN32)

IF(MSVC)
  ADD_DEFINITIONS(-D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE)
ENDIF(MSVC)

# Sets up the dependencies (zlib, OpenSSL, etc.) of a cURL subproject according to options.
# TODO This is far to be complete!
FUNCTION(SETUP_CURL_DEPENDENCIES TARGET_NAME)
  IF(CURL_ZLIB AND ZLIB_FOUND)
    INCLUDE_DIRECTORIES(${ZLIB_INCLUDE_DIR})
  ENDIF()
  IF(CURL_ZLIB AND ZLIB_FOUND)
    TARGET_LINK_LIBRARIES(${TARGET_NAME} ${ZLIB_LIBRARIES})
    #ADD_DEFINITIONS( -DHAVE_ZLIB_H -DHAVE_ZLIB -DHAVE_LIBZ )
  ENDIF()

  IF(CMAKE_USE_OPENSSL AND OPENSSL_FOUND)
    INCLUDE_DIRECTORIES(${OPENSSL_INCLUDE_DIR})
  ENDIF()
  IF(CURL_SSL AND CURL_CONFIG_HAS_BEEN_RUN_BEFORE)
    TARGET_LINK_LIBRARIES(${TARGET_NAME} ${OPENSSL_LIBRARIES})
    #ADD_DEFINITIONS( -DUSE_SSLEAY )
  ENDIF()
ENDFUNCTION()

# Ugly (but functional) way to include "Makefile.inc" by transforming it (= regenerate it).
FUNCTION(TRANSFORM_MAKEFILE_INC INPUT_FILE OUTPUT_FILE)
  FILE(READ ${INPUT_FILE} MAKEFILE_INC_TEXT)
  STRING(REPLACE "$(top_srcdir)"   "\${CURL_SOURCE_DIR}" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
  STRING(REPLACE "$(top_builddir)" "\${CURL_BINARY_DIR}" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})

  STRING(REGEX REPLACE "\\\\\n" "<22>!<21>" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
  STRING(REGEX REPLACE "([a-zA-Z_][a-zA-Z0-9_]*)[\t ]*=[\t ]*([^\n]*\n)" "SET(\\1 \\2)\n" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
  STRING(REPLACE "<22>!<21>" "\n" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})

  STRING(REGEX REPLACE "\\$\\(([a-zA-Z_][a-zA-Z0-9_]*)\\)" "\${\\1}" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})    # Replace $() with ${}
  STRING(REGEX REPLACE "@([a-zA-Z_][a-zA-Z0-9_]*)@" "\${\\1}" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})    # Replace @@ with ${}, even if that may not be read by CMake scripts.
  FILE(WRITE ${OUTPUT_FILE} ${MAKEFILE_INC_TEXT})

  ### BUGGY METHOD 1
  # FILE(STRINGS Makefile.inc MAKEFILE_INC_TEXT)
  # STRING(REPLACE "# ./lib/Makefile.inc" "" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
  # STRING(REPLACE "  " " " MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})    # Replace tabs with spaces

  # #STRING(REGEX MATCH "CSOURCES *=" AAA ${MAKEFILE_INC_TEXT})
  # #MESSAGE(STATUS ${AAA})

  # STRING(REPLACE "CSOURCES =" "" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
  # STRING(REPLACE "HHEADERS =" "" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})

  # STRING(REGEX REPLACE "[^ ]+\\.c" "" ${HEADERS_VAR} ${MAKEFILE_INC_TEXT})    # Remove source files and store into headers var
  # STRING(REGEX REPLACE "  +" " " ${HEADERS_VAR} ${${HEADERS_VAR}})
  # STRING(REGEX REPLACE " " ";" ${HEADERS_VAR} ${${HEADERS_VAR}})

  # STRING(REGEX REPLACE "[^ ]+\\.h" "" ${SOURCES_VAR} ${MAKEFILE_INC_TEXT})    # Remove headers and store into source files var
  # STRING(REGEX REPLACE "  +" " " ${SOURCES_VAR} ${${SOURCES_VAR}})
  # STRING(REGEX REPLACE " " ";" ${SOURCES_VAR} ${${SOURCES_VAR}})

  # SET(${HEADERS_VAR} ${${HEADERS_VAR}} PARENT_SCOPE)
  # SET(${SOURCES_VAR} ${${SOURCES_VAR}} PARENT_SCOPE)

  ### BUGGY METHOD 2
  # FILE(READ Makefile.inc MAKEFILE_INC_TEXT)
  # #STRING(REPLACE "\t" " " MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})    # Replace tabs with spaces
  # #STRING(REGEX REPLACE "\n+" "\n" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})    # Remove empty lines (allow a simplification in the script)
  # STRING(REGEX REPLACE "([A-Z]+)[\t ]*=[\t ]*" "SET(\\1 " MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
  # #STRING(REGEX REPLACE "^(.*)[\t ]*[^\\]$" ")" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
  # STRING(REGEX REPLACE "([^\\])\n" "\\1)\n" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
  # # STRING(REGEX REPLACE "CSOURCES *=" "SET(libCurl_SRCS " MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
  # # STRING(REGEX REPLACE "HHEADERS *=" "SET(libCurl_HEADERS " MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
  # FILE(WRITE Makefile.inc.cmake ${MAKEFILE_INC_TEXT})
ENDFUNCTION()

ADD_SUBDIRECTORY(lib)
IF(BUILD_CURL_EXE)
  ADD_SUBDIRECTORY(src)
ENDIF()
IF(BUILD_CURL_TESTS)
  ADD_SUBDIRECTORY(tests)
ENDIF()

# This needs to be run very last so other parts of the scripts can take advantage of this.
IF(NOT CURL_CONFIG_HAS_BEEN_RUN_BEFORE)
    SET(CURL_CONFIG_HAS_BEEN_RUN_BEFORE 1 CACHE INTERNAL "Flag to track whether this is the first time running CMake or if CMake has been configured before")
ENDIF()